Bockingford 300gsm Block 16" x 12" (31 x 41cm) NOT (BFB31N) Bockingford 300gsm Blocks These great value blocks offer you an ideal watercolour painting surface, and being glued on all four edges, there is no need to stretch. 12 sheets. FREE shipping on orders over $175, and large shipping refunds on multiple purchases. Just email us with your order number and we will see what we can do. We aim to ship every order received before 02:00 NZT on the same day and most orders will be with you inside of 12 days, although some may take up to 15 working days. Free Shipping only on orders of 4kg or less.